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Acid Yellow 19
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Name

Acid Yellow 19

 EINECS 235-409-5
CAS No. 12220-64-3 Density N/A
PSA 188.55000 LogP 5.49200
Solubility 50 g / L (90 °C) at water Melting Point N/A
Formula C20H12Cl2N4Na2O7S2 Boiling Point N/A
Molecular Weight 601.34742 Flash Point N/A
Transport Information N/A Appearance yellow powder
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 12220-64-3 (disodium 2-[[1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]naphthalene-1-sulphonate) Hazard Symbols N/A
Synonyms

1-Naphthalenesulfonicacid,2-[[1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-,disodium salt (9CI);Acid Yellow 19;Acid Yellow 2GX;Aminyl Yellow E-GNL;BestAcid Yellow GL;C.I. Acid Yellow 19;Covalene Yellow RCP;Covanyl Yellow RCP;Daedo Acid Yellow C-GRL;Erio Fast Yellow G;Hispalon Yellow B-RGL;KenamideYellow GR;Mitsui Acid Fast Yellow GR;Nylosan Yellow E-GRL;Nylosan YellowE-GRL 160;Rifa Acid Fast Yellow E-GRL;Rifa Leather Yellow 3GL;SuminolLevelling Yellow NR;Triacid Fast Yellow GRL;Xylene Light Yellow R;2-((1-(2,5-Dichloro-4-sulfophenyl)-5-hydroxy-3-methyl-1H-pyrazol-4-yl)azo)-1-naphthalenesulfonic acid, disodium salt;

 

Acid Yellow 19 Specification

The IUPAC name of Acid Yellow 19 is disodium 2-[[1-(2,5-dichloro-4-sulfonatophenyl)-3-methyl-5-oxo-4H-pyrazol-4-yl]diazenyl]naphthalene-1-sulfonate. With the CAS registry number 12220-64-3, it is also named as 2-((1-(2,5-Dichloro-4-sulfophenyl)-5-hydroxy-3-methyl-1H-pyrazol-4-yl)azo)-1-naphthalenesulfonic acid, disodium salt. The product's categories are Organics; Strong Acid Dyes; Dyes; Acid Dyes, and the other registry numbers are 66556-82-9; 70865-22-4. Besides, it is yellow powder, which is soluble in water. In addition, its molecular formula is C20H12Cl2N4Na2O7S2 and molecular weight is 601.34742.

The other characteristics of this product can be summarized as: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 10; (3)Rotatable Bond Count: 3; (4)Tautomer Count: 4; (5)Exact Mass: 599.931985; (6)MonoIsotopic Mass: 599.931985; (7)Topological Polar Surface Area: 189; (8)Heavy Atom Count: 37; (9)Complexity: 1080; (10)Water solubility: 50 g/L (90 °C); (11)EINECS: 235-409-5.

Preparation and Uses of Acid Yellow 19: please dizotize 2-Aminonaphthalene-1-sulfonic acid. And then put the resultant to couple with 1-(2',5'-Dichloro-4'-sulfo-phenyl)-3-methyl-5-pyrazolone. You will obtain this chemical after salting out, filtration, drying and crushing. Moreover, this product is used for dyeing of silk and wool. It also can be used for direct printing of wool and silk fabrics.

People can use the following data to convert to the molecule structure.
(1)SMILES: [Na+].[Na+].[O-]S(=O)(=O)c3c4c(ccc3/N=N/C2\C(=N/N(c1c(Cl)cc(c(Cl)c1)S([O-])(=O)=O)C2=O)C)cccc4
(2)InChI: InChI=1/C20H14Cl2N4O7S2.2Na/c1-10-18(20(27)26(25-10)16-8-14(22)17(9-13(16)21)34(28,29)30)24-23-15-7-6-11-4-2-3-5-12(11)19(15)35(31,32)33;;/h2-9,18H,1H3,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2/b24-23+
(3)InChIKey: KRVDIUOUSKADMQ-AQVGDJFIBG
(4)Std. InChI: InChI=1S/C20H14Cl2N4O7S2.2Na/c1-10-18(20(27)26(25-10)16-8-14(22)17(9-13(16)21)34(28,29)30)24-23-15-7-6-11-4-2-3-5-12(11)19(15)35(31,32)33;;/h2-9,18H,1H3,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2/b24-23+
(5)Std. InChIKey: KRVDIUOUSKADMQ-KPOOZVEVSA-L

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